how to troubleshoot Honda CR-V Fifth Generation (2017-2022) brake lights not working

Honda CR-V Fifth Generation (2017-2022)

Error Codes

1-2 hours

Time

medium

Difficulty

critical

Severity

4 min read

639 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to troubleshoot and fix brake lights not working on Honda CR-V Fifth Generation (2017-2022). Step-by-step guide with diagnostic and repair instructions.

Affected Component

Brakes

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the negative battery terminal before working on electrical components to prevent shock or short circuits.

Symptoms

•Brake lights do not illuminate when the brake pedal is pressed
•Check Engine Light may be illuminated on the dashboard
•Other rear lights may function normally (tail lights, turn signals)
•No sound from the brake light switch when the pedal is pressed
•Possible blown fuse related to brake lights

Diagnostic Steps

1
Inspect the brake light bulbs for any signs of damage or burn out.
2
Check the brake light fuse using the fuse box diagram for the correct fuse location.
3
Test the brake light switch for continuity with a multimeter.
4
Examine the wiring and connectors leading to the brake light assembly for any damage or corrosion.
5
Use an OBD-II scanner to check for any stored fault codes related to the brake system.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Multimeter
•Socket set
•Screwdriver
•Fuse puller or needle-nose pliers

Parts Required

•Brake light bulbs (if burned out)
•Brake light fuse (if blown)
•Brake light switch (if faulty)

Related Faults

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Symptoms

•Brake lights do not illuminate when the brake pedal is pressed

•Check Engine Light may be illuminated on the dashboard

•Other rear lights may function normally (tail lights, turn signals)

•No sound from the brake light switch when the pedal is pressed

•Possible blown fuse related to brake lights

Diagnostic Steps

1
Inspect the brake light bulbs for any signs of damage or burn out.
2
Check the brake light fuse using the fuse box diagram for the correct fuse location.
3
Test the brake light switch for continuity with a multimeter.
4
Examine the wiring and connectors leading to the brake light assembly for any damage or corrosion.
5
Use an OBD-II scanner to check for any stored fault codes related to the brake system.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the negative battery terminal to prevent electrical shock.

2. Replace Brake Light Bulbs

Tools Required: Socket set
Steps:
1. Open the rear hatch and remove the access panel to the brake light assembly.
2. Twist the bulb socket counterclockwise to remove it from the assembly.
3. Pull the old bulb straight out and replace it with a new one, ensuring it is securely seated.
4. Reinstall the bulb socket into the assembly and twist it clockwise to lock it in place.
5. Replace the access panel.

3. Check and Replace Brake Light Fuse

Tools Required: Fuse puller or needle-nose pliers
Steps:
1. Locate the fuse box, typically found under the dashboard or in the engine compartment.
2. Refer to the fuse box diagram to identify the brake light fuse.
3. Remove the fuse using the fuse puller or pliers.
4. Inspect the fuse for a broken filament. If blown, replace it with a new fuse of the same amperage.
5. Reinstall the fuse and close the fuse box.

4. Test and Replace Brake Light Switch

Tools Required: Multimeter, screwdriver
Steps:
1. Locate the brake light switch, typically mounted above the brake pedal.
2. Disconnect the electrical connector from the brake light switch.
3. Use a multimeter to test for continuity across the switch terminals while pressing the brake pedal.
4. If there is no continuity, replace the brake light switch with a new one.
5. Reconnect the switch and ensure it is securely mounted.

5. Inspect Wiring and Connectors

Tools Required: Visual inspection tools, multimeter
Steps:
1. Visually inspect the wiring and connectors leading to the brake light assembly for any signs of wear, corrosion, or damage.
2. If any wiring is damaged, repair or replace it as necessary.
3. Ensure all connectors are clean and securely connected.